Final answer:
The Earth's gravitational force with other solar system objects, like the Moon, maintains their orbits and allows for the calculation of their masses through mutual gravitational effects. The dominance of the Sun's gravitational pull likewise helps keep planets in nearly circular orbits within the same plane.
Step-by-step explanation:
Gravitational Force Between Earth and Another Object
The gravitational force that Earth has with another object in the solar system can be described using Newton's universal law of gravitation. This law states that the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. For example, the Earth's gravitational interaction with the Moon keeps it in orbit, while mutual gravitational effects allow us to calculate the mass of astronomical objects within our solar system.
When considering the force of gravity, aspects such as Earth's perigee and apogee, or respective nearest and farthest orbital points, are important, and the force of gravity is fundamental in maintaining orbits of solar system bodies. When dealing with the orbit of the Earth around the Sun, gravitational force is the primary factor. This is because other forces, like electrostatic forces, are negligible in comparison.
The gravitational force not only dictates the trajectory of the Earth but also affects objects ranging from satellites to asteroids within our solar system. The orbits of planets are nearly circular and fall within the same plane due to the consistent pattern of gravitational attraction with the Sun at the center, acting as the dominant gravitational body.